Much associated with Hitler and the Nazis has become taboo or gauche in the English-speaking West as a result of the terrible tragedies of the Second World War; one can point to many things, from personal names, to styles of moustaches, to the manner of military parades, that have been affected by this association.
What's more, I understand that Germans are sensitive to that period of their history in the vocabulary they employ — for example, a native German speaker once told me that the word Endlösung, which might be applied most ordinarily to mean "an end solution" before Hitler, is now taboo in German. Indeed, I just recently read an article about the furor raised when a German Roman Catholic bishop used the word "entartet" (degenerate) to describe art that didn't subscribe to Christian ideals.
My question is simple then: Does the word Lebensraum fall into this same taboo status as a result of an association with Hitler and the Nazis? I read on Wikipedia that it could used roughly as a synonym for environment, but I'm not sure how archaic or dated the usage they give is.